Adjustable insulator-support.



L. FORT.

ADJUSTABLE INSULATOR SUPPORT. APPLIGATXON FILED IEB. e, 1913.

1,097,4 1 4. Patented May 19, 1914.

iiM'lilmi (3.0M 01' Jorvs m and State COED 1. certain new H hi mwjustubh In: ML following is ju A h 5 Win: 2* 21m? 1s: m (m M d heavyaim: sup- $0 an insulator zsclgnsiiv'mmt with "abet as hereinta providekiwri/ 1%0? DYE-555:,"

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n Men cum MMH v in a 0):- pv nanimtlv and dofinit v fag 1s ('H m .,1 mm:1 in l lv lmvmg L tawny; mid bracket to the, cross arm. It has Y1101111015 iii mi E having a, 1005) extending about the cross Fm ME: 3smdyorimis no'nt of arm and with fastening devices suvh as nuts m f PMlunwinu' haw i-i- 1 passes and scrmv' threads at two ends of the T001)unfit? H10. n :n-m mm (axlvmiss up the for binding); (in: bracketin1'fl:1 :e z'lsl'uinxt the Win thou-0?: Mmmgh a?! oimmink'xi pm'i mw100 M Whifih pawns about H10 (:11 mm m {he like n'wuy be so adjustedwith rcfol'mlvu "w the fixed Mme: of the bruckn'i; Hmi: H162 devicemight be smirm'ed to cross r 0? fiiflicw .1 CIOSE Emtimm ajni when (mm:met in Mace a1 ,5? Zodiac} wiii, 1mm the nature of the L B/Still? 1Tush" im in he 3? 0 and opposed e boss edges of the bosses 11 and 16 andare providcd with a central perforation 23, through which the threadedends of the clamping bar 1% extends, which bar, through nuts 2&, 25, maybe clamped firmly against the cross arm, thus holding the bracket in adefined position.

The blocks 19, 20 are of tapered form so that whatever the position ofthe clamping bar in the horizontal or vertical. position, the nuts 'willbind firmly and squarely against the upper surface of the taperedblocks. The taper of the block of course corresponds to the incline ofthe perforated boss and when the nuts are once firmly screwed down withthe bracket adjusted upon the cross arm, the tendency is to bind tighterand tighter under any given strain. In Fig. t the bosses 30 and 31 areillustrated as having faces substantially at right angles to each other.

The perforations 33 are ofelongated form so that an adjustn'ient'of theclamping bar ill may be ei'l'ected in two directions, thus permittingadjustment to cross arms of various cross sections. As in the deviceheretofore described, a universal adjustment is thus preivided, but inlieu of the tapered or wedge-shaped members underlying the nuts 36, @T,rectangular blocks or washers 3S, 3!) are employed. This form of thedevice, while of somewhat simpler form, lacks the inclined form ofbinding surface of Figs. 1 to :3 and. will not have the inhercntclampingaction toward the angle of the bracket when setting down the bindingnuts. ()t' course, the clamping bar is capable of adjustment in twodirections and if snugly fitted and tightly clamped, provides asubstantial holding device with the features (it mljustability.

In the -form described in Figs. 1 to 3, the tightening of the nuts tendsto draw the bracket firmly against the cross arm as the clamping bar istightened in both directions. It will be noted that the webs of thebracket are of substantial width so that a firm hold or seat is givenfor the bracket with reference to the cross arm, thus unusual strainsmay be placed upon the insulators without liability of the bracketturning or becomingdisplaced and without liability of its cutting intothe material of the cross arm. Y

Obviously, the exact form of bracket and arrangement of insulators mightbe varied to a great extent without departing from the spirit or intentof the invention and in lieu of having two arms with threads forsupporting insulators, a single arm either dependent and similar to thearm 7 or extending upwardly as the arm 5 might be used. In fact, thearrangement or insulator supporting arms is immaterial, the essence ofthe invention residing in the arrangement of the bracket having a saddlewith a clamping bar universally adjustable with reference to the twoparts of the saddle, whereby it may be adjustable with referenceto-andsecured to cross arms of various cross sections.

What I claim as my invention and desire to secure by Letters Patent is:

1. An adjustable insulator support having means for supporting aninsulator embodying a saddle part comprising two members angularlydisposed to embrace two sides of a cross arm, tapered bosses arranged oneach of said members, said bosses having their-tapers ext-ending towardeach other, a. clamping bar arranged to embrace two sides of the crossarm and having its ends projecting beyond the tapered bosses of thesaddle member and devices for drawing the clampii'ig bar to cause saidbar and saddle member to bind against the cross arm.

2. An adjustable insulating support having means for supporting aninsulator embodying'a saddle comprising two members angularly disposedto embrace two sides of a cross arm, bosses having elongatedperforations arranged on each of said members, said bosses havingangularly disposed faces, perforated binding blocks fitting said taperedfaces, a clamping bar extending through the perforated bosses andbinding blocks and devices for drawing said clamping bar through saidbloc-ks.

S. In a device of the character described, a; saddle-like member havingangularly arranged extensions embracing two sides of a cross arm,tapered bosses having elongated perforations arranged in each of saidextensions, perforated blocks of wedgeshape overlying said perforatedbosses and provided with dependent flanges embracing the sides thereof,a clamping bar having its ends protruding through said wedge-shapedblocks and nuts engaging the ends of said clamping bar.

LOUIS FORT.

\Vitnesses Fnxncis COLnrY, KATE BRENNER.

